C++ Bitset Library - bitset() Function

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Description

The C++ constructor std::bitset::bitset() constructs bitset container and initialize it with the bit value of val.

Declaration

Following is the declaration for std::bitset::bitset() constructor form std::bitset header.

C++98

bitset (unsigned long val);

C++11

constexpr bitset (unsigned long long val) noexcept;

Parameters

val − Number used to initialize the bitset.

Return value

Constructor never returns value.

Exceptions

This member function never throws exception.

Example

The following example shows the usage of std::bitset::bitset() constructor.

#include <iostream>
#include <bitset>

using namespace std;

int main(void) {
   bitset<4>b(8);

   cout << b << endl;

   return 0;
}

Let us compile and run the above program, this will produce the following result −

1000